Saturday, April21, 2018 L-36.com


Marine Weather and Tides
North Key Largo, FL

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:51AMSunset 7:49PM Saturday April 21, 2018 7:08 PM EDT (23:08 UTC) Moonrise 10:47AMMoonset 12:00AM Illumination 41% Phase: Waxing Crescent; Moon at 7 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ630 Biscayne Bay- 416 Pm Edt Sat Apr 21 2018
Tonight..East winds around 10 knots. Bay waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday..East southeast winds around 10 knots. Bay waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday night..Southeast winds around 10 knots. Bay waters light chop. A chance of showers and a slight chance of Thunderstorms.
Monday..Southeast winds 5 to 10 knots. Bay waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Monday night..South winds 5 to 10 knots. Bay waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Tuesday..South southwest winds 5 to 10 knots. Bay waters a light chop. Showers likely and a slight chance of Thunderstorms.
Tuesday night..West southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers.
Wednesday..West southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers.
Wednesday night..West northwest winds 5 to 10 knots. Bay waters a light chop.
Thursday..West southwest winds 5 to 10 knots. Bay waters a light chop. A slight chance of showers.
AMZ600 Synopsis For Jupiter Inlet To Ocean Reef Fl Out To 60 Nm And For East Cape Sable To Bonita Beach Fl Out To 60 Nm- 416 Pm Edt Sat Apr 21 2018
Synopsis..A stalled front remains just to the north, over central florida. Marine conditions are forecast to deteriorate through the day as the wind increases and seas build. Showers and Thunderstorms are forecast bring locally higher winds and waves late this weekend into early next week. Conditions should gradually improve by mid next week.
Gulf stream hazards..Deteriorating conditions over the weekend with 7 to 8 foot seas expected. The approximate location of the west wall of the gulf stream as of apr 21, 2018 at 1200 utc... 12 nautical miles east southeast of fowey rocks. 10 nautical miles east of port everglades. 8 nautical miles east southeast of lake worth. 11 nautical miles east of jupiter inlet. This data courtesy of the naval oceanographic office.

7 Day Forecast for Marine Location Near North Key Largo CDP, FL
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location: 25.31, -80.27     debug


Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 212016
afdmfl
area forecast discussion
national weather service miami fl
416 pm edt Sat apr 21 2018

Discussion
Short term (tonight-Monday night)... A frontal, decaying boundary
remains stalled over the central portions of the florida
peninsula, keeping a warm and moist airmass over south florida
tonight and Sunday. Meanwhile, models show a mid level trough low
complex developing over the central states and pushing an
associated cold front towards florida. This synoptic scenario will
translate in increasing chances of showers for tonight and into
Sunday, including slight chances of thunderstorms. Rain coverage
increases late Sunday into Monday as the stalled remnant boundary
over central florida interacts with the approaching front and its
parent trough low complex. Although widespread heavy rain is not
anticipated, isolated downpours are certainly possible.

Models continue to show the higher chances for thunderstorm
activity Monday afternoon, especially over interior portions of
south florida as overall flow veers southerly ahead of the
incoming front. High-end pops are being carried in the latest
forecast package with up to 80-90 pops over interior areas around
lake okeechobee. And although it is possible for a few storms to
become strong or even severe, latest model solutions remain
conservative regarding upper level dynamic support for severe
weather. But the situation will continue to be closely monitored
as new model guidance become available.

Long term (Tuesday-Friday)... A mid level trough low complex
migrates into the south eastern states and pushing its associated
frontal boundary further south and into the area by Tuesday. This
will further veer winds to the sw, moving the higher chances for
showers and storms into the atlantic metro areas. Once the front
clears south florida, drier air will filter from the northwest
briefly, bringing a pause to the rainy pattern Wednesday and
Thursday. No significant impacts in temperatures are expected from
this fropa.

Long range model solutions a couple of energy impulses quickly
evolving over the us and pushing cold fronts into florida Thursday
and Friday. However, timing and potential impacts of these systems
remain uncertain as there is still plenty of time for significant
model adjustments. Therefore, will keep inherited long range
forecast of mainly prevailing dry conditions across the area for
the end of the period and wait for upcoming guidance before making
any significant changes.

Marine
An slowly retreating northerly swell, combined with gusty easterly
winds will keep hazardous seas over the atlantic waters tonight.

Elevated winds and seas will linger into early next week as the
next cold front pushes through the area. Conditions will gradually
improve by midweek.

Aviation
East coast sites will generally remain ene 8-10kts through the
remainder of the overnight, though kopf-ktmb will briefly drop to
5-8kts through daybreak. Speeds pickup after 13z, with east wind
surge arriving after 18z bringing speeds around 15kts with gusts
to 25kts. Kapf expected to see gulf breeze around same time,
backing winds out of the wsw. Conditions look to remainVFR,
though occasional east coast MVFR stratocu possible through
period. Bkn050 and vcsh become more likely along east coast after
18z.

Beach forecast
An elevated swell and persistent easterly flow will create an
elevated risk of rip currents along the atlantic beaches through
this weekend. The palm beaches will have a high risk for rip
current through the rest of weekend, and possibly into early next
week. The miami-dade and broward beaches may also see deteriorating
conditions starting Sunday. Rip current statement for the palm
beaches is now in effect through Sunday.

Aviation
An easterly flow and a boundary to the north, will bring the
possibility of shra and tsra to the area. The chances increase
gradually today and this evening, and persist through the taf
period. However, tsra is very uncertain as to where and how long,
so not mentioned in tafs at this time. Vcsh is placed in all but
kapf, where chances are lower at this time. WhileVFR is forecast,
ifr is possible under +shra and +tsra.

Preliminary point temps pops
West palm beach 71 81 71 82 50 50 50 60
fort lauderdale 74 81 73 82 50 40 50 60
miami 73 83 73 83 40 40 40 50
naples 69 84 70 84 20 40 30 40

Mfl watches warnings advisories
Fl... High rip current risk until 8 pm edt this evening for flz168.

Am... Small craft advisory until 11 am edt Sunday for amz651-671.

Small craft advisory until 11 am edt Sunday for amz650-670.

Gm... None.

Discussion marine... 17 ar
aviation... Si


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HCEF1 - Highway Creek, FL 10 mi128 min 86°F
LSNF1 - Long Sound, FL 11 mi68 min 86°F
LBSF1 - Little Blackwater, FL 11 mi128 min 84°F
BWSF1 - Blackwater Sound, FL 13 mi128 min 85°F
DKKF1 - Duck Key, FL 15 mi128 min 83°F
TCVF1 - Trout Cove, FL 15 mi128 min 86°F
BNKF1 - Butternut Key, FL 20 mi68 min 83°F
TRRF1 - Taylor River, FL 21 mi68 min 87°F
MLRF1 - Molasses Reef, FL 21 mi68 min ENE 14 G 15 78°F 79°F1017.8 hPa (-1.0)
LMDF1 - Little Madeira, FL 21 mi68 min 85°F
FWYF1 - Fowey Rocks, FL 21 mi68 min NE 12 G 14 78°F 78°F1018.5 hPa (-1.0)
TBYF1 26 mi68 min 87°F
BOBF1 - Bob Allen, FL 29 mi68 min 83°F
GBTF1 - Garfield Bight, FL 30 mi68 min 89°F
VAKF1 - 8723214 - Virginia Key, FL 30 mi56 min NE 8.9 G 12 79°F 81°F1017.3 hPa
WRBF1 - Whipray Basin, FL 30 mi128 min NE 9.9 86°F
LRIF1 33 mi68 min 87°F
BKYF1 33 mi68 min 88°F
NRRF1 34 mi68 min 82°F
WWEF1 36 mi128 min 85°F
CANF1 - Cane Patch, FL 36 mi128 min 78°F
LRKF1 - Little Rabbit Key, FL 37 mi128 min 83°F
TPEF1 - Tarpon Bay East, FL 37 mi128 min 83°F
PKYF1 - Peterson Key, FL 37 mi68 min 83°F
JKYF1 - Johnson Key, FL 38 mi128 min 86°F
CWAF1 39 mi128 min 86°F
BDVF1 - Broad River, FL 40 mi68 min 83°F
GBIF1 - Gunboat Island, FL 41 mi68 min 81°F
HREF1 43 mi68 min 81°F
SREF1 44 mi68 min 82°F
WIWF1 - Willy Willy, FL 45 mi68 min 82°F
LONF1 - Long Key, FL 45 mi68 min E 13 G 14 79°F 82°F1017.2 hPa (-1.1)70°F

Wind History for Virginia Key, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homestead Air Reserve Base, FL13 mi72 minNE 1110.00 miA Few Clouds80°F70°F71%1017.9 hPa

Wind History from HST (wind in knots)
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Last 24hrE4CalmCalmE3E4E4E4E3CalmN3NE5CalmCalmE6E7E8NE7E7E9
G15
NE10NE9NE9NE11NE8
1 day agoS5S4CalmCalmS3CalmCalmCalmCalmCalmW4NW5NW6NW6NW6W5NW4SE3NE7E9E5E7E9E7
2 days agoE6E4E6E7E6E5E5E5SE3SE3S3CalmCalmCalmCalmCalmE4E8E10E8SE6SE5SE7SE7

Tide / Current Tables for Ocean Reef Harbor, Key Largo, Florida
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Ocean Reef Harbor
Click for Map
Sat -- 12:40 AM EDT     Moonset
Sat -- 01:22 AM EDT     2.62 feet High Tide
Sat -- 06:53 AM EDT     Sunrise
Sat -- 07:30 AM EDT     0.26 feet Low Tide
Sat -- 11:46 AM EDT     Moonrise
Sat -- 01:35 PM EDT     2.40 feet High Tide
Sat -- 07:46 PM EDT     Sunset
Sat -- 07:56 PM EDT     -0.22 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.62.62.21.710.60.30.30.61.11.62.12.32.42.11.60.90.3-0.1-0.2-00.51.1

Tide / Current Tables for Caesar Creek, Biscayne Bay, Florida Current
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Caesar Creek
Click for Map
Sat -- 12:40 AM EDT     Moonset
Sat -- 03:20 AM EDT     -0.00 knots Slack
Sat -- 06:13 AM EDT     -1.53 knots Max Ebb
Sat -- 06:52 AM EDT     Sunrise
Sat -- 09:54 AM EDT     0.00 knots Slack
Sat -- 11:46 AM EDT     Moonrise
Sat -- 12:01 PM EDT     0.73 knots Max Flood
Sat -- 02:40 PM EDT     -0.00 knots Slack
Sat -- 06:24 PM EDT     -1.93 knots Max Ebb
Sat -- 07:46 PM EDT     Sunset
Sat -- 10:15 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.30.90.3-0.5-1.2-1.5-1.4-1.1-0.60.10.50.70.60.3-0.2-0.8-1.5-1.9-1.9-1.5-0.9-0.20.5

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Miami-South Florida, FL (19,4,5,8)
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Ground Weather Radar Station Miami, FL
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.